Spontaneous

"Spontaneous" in Russian

доброво́льный

dobrovólʹnyj

(done by one's own free choice, or without planning)

самопроизво́льный

samoproizvólʹnyj

(self generated; happening without any apparent external cause)

спонта́нный

spontánnyj

(self generated; happening without any apparent external cause)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.